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Two green DDR4 DIMMs with black heatspreaders

Black Diamond Memory

Black Diamond Memory BD8GX22133MQR26 16GB (2 x 8GB) DDR4 2133 ECC Registered server RAM

SKU CH-71KW-9PHK6 MPN BD8GX22133MQR26

16GB dual-channel DDR4-2133 ECC registered kit with 2Rx4 organisation for server stability

  • Capacity16GB (2 x 8GB)
  • Type288-Pin DDR4 SDRAM
  • SpeedDDR4 2133 (PC4 17000)
  • ECCYes
  • Buffered/RegisteredRegistered
  • Rank2Rx4

Capacity 16GB (2 x 8GB)

Struck-through versions exist but are not stocked here.

Rank 2Rx4

  • 16 GB dual-channel capacity for multitasking headroom
  • DDR4 2133 speed delivers 17000 MB/s bandwidth
  • ECC registered design corrects single-bit errors
  • 2Rx4 organisation optimises density per channel
  • 288-pin form factor fits standard server DIMM slots

Server ECC Registered DDR4 Kit

This 16 GB kit contains two 8 GB DDR4 2133 registered DIMMs with ECC. It is built for servers and workstations that require error correction and signal buffering. The modules use a 288-pin form factor and a 2Rx4 organisation. They are not suitable for standard desktop boards that only accept unbuffered memory.

Verify Registered DIMM Support

Check that your motherboard and CPU explicitly support registered ECC DDR4 before ordering. Consumer chipsets and many entry-level workstation boards will not post with these modules. Confirm the maximum supported speed and total capacity per channel in your system documentation. The kit operates at PC4 17000 and will downclock if the platform requires a lower rate.

Steady Enterprise Workloads

Registered buffering reduces electrical load on the memory controller during continuous operation. ECC corrects single-bit errors that can accumulate under sustained write cycles. The 2Rx4 density helps maintain stability when all slots are populated for long-running database or virtualisation tasks. Heat output remains consistent because the modules run at standard DDR4 2133 voltage.

Highlights

  • 16 GB dual-channel capacity for multitasking headroom
  • DDR4 2133 speed delivers 17000 MB/s bandwidth
  • ECC registered design corrects single-bit errors
  • 2Rx4 organisation optimises density per channel
  • 288-pin form factor fits standard server DIMM slots

Specifications

BrandBlack Diamond Memory
ModelBD8GX22133MQR26
Capacity16GB (2 x 8GB)
Type288-Pin DDR4 SDRAM
SpeedDDR4 2133 (PC4 17000)
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Shipping weight0.23 kg
Package size178 × 76 × 51 mm

Other versions of this model

4 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Does the kit ship as two 8 GB DDR4 modules or must I order them separately?

The package contains two 8 GB DDR4 2133 registered ECC DIMMs for a total of 16 GB.

Should I pick the 2Rx4 registered version or a different rank for my server?

These are 2Rx4 registered modules; choose them when your platform requires registered ECC DDR4 at 2133 MT/s.

What does the PC4 17000 rating tell me about real-world throughput?

PC4 17000 indicates a peak transfer rate of 17 000 MB/s per module at the rated 2133 MT/s speed.

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